/*!
 * 站点Jquery或JS扩展
 */

/****<-- Jquery validate 扩展 -->*************************************************************************************/





/**
 * 最大字节长度规则
 */
$.validator.addMethod("maxByte", function(value, element, param) {
	return $.trim(value).getBytesLength() <= param;
}, "字节长度超出");

/**
 * 最小字节长度规则
 */
$.validator.addMethod("minByte", function(value, element, param) {
	return $.trim(value).getBytesLength() >= param;
}, "字节长度太小");

/**
 * 字母与数字
 */
$.validator.addMethod("letterAndNumber", function(value, element, param) {
	var letter = /^[a-zA-Z0-9]+$/;
	value = $.trim(value);
	return letter.test(value);
}, "只能包含字母和数字");

/**
 * 二选一规则
 */
$.validator.addMethod("eitherOr", function(value, element, param) {
	value = $.trim(value);
	return value != "" || $(param).val() != "";
}, "二选一规则");

/**
 * 手机验证规则 // var mobile = /^(((13[0-9]{1})|(15[0-9]{1}))+\d{8})$/;
 */
$.validator.addMethod("mobile", function(value, element) {
	var mobile = /^[0-9]{11}$/;

	value = $.trim(value);
	var length = value.length;
	return this.optional(element) || (length == 11 && mobile.test(value));
}, "手机号码格式有误");

/**
 * 电话验证规则
 */
$.validator.addMethod("telephone", function(value, element) {
	var tel = /^(\d{3,4}-?)?\d{7,9}$/;

	value = $.trim(value);
	return this.optional(element) || (tel.test(value));
}, "电话格式有误");

/**
 * 邮政编码验证规则
 */
$.validator.addMethod("code", function(value, element) {
	var code = /^[_0-9a-z]{1,20}$/i;

	value = $.trim(value);
	return this.optional(element) || (code.test(value));
}, "邮政编码格式有误");

/**
 * 收货地址规则：市、县或区为必选项
 */
$.validator.addMethod("requireRegion", function(value, element, param) {
	var obj = $(element);
	var val = obj.val();
	if (obj.find("option").size() == 1) {
		return true;
	}
	return val && val.length > 0;
}, "");

/**
 * 获取字符串字节数
 */
String.prototype.getBytesLength = function() {
	var length = 0;
	for(i = 0; i < this.length; i++) {
		iCode = this.charCodeAt(i);
		if ((iCode >= 0 && iCode <= 255) || (iCode >= 0xff61 && iCode <= 0xff9f)) {
			length += 1;
		} else {
			length += 2;
		}
	}
	
	return length;
};

/**
 * 验证字符是否日期格式
 */
String.prototype.isDate = function() {
	var vl = this;
	var r = $.trim(vl).match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
	if (r == null) return false;
	var d = new Date(r[1], r[3]-1, r[4]);
	
	return (d.getFullYear() == r[1] && (d.getMonth()+1) == r[3] && d.getDate()==r[4]);
};





/****<-- Jquery 插件 -->*************************************************************************************/





(function($) {
	/**
	 * 文本档限制只能输入数字
	 */
	jQuery.fn.numeric = function(callback) {
		callback = typeof callback == "function" ? callback : function(){};
		
		$(this).css("ime-mode", "disabled");
		this.bind("keypress",function(e) {
			var key = e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0;
			
			if (key == 8) {
				return true;
			}
			if (key == 46) {
				//if (this.value.indexOf(".") != -1) {
					return false;
				//}
			} else {
				return key >= 46 && key <= 57;
			}
		});
		this.bind("blur", function() {
			callback.apply(this);
		});
		this.bind("paste", function() {
			var s = clipboardData.getData('text');
			if (!/\D/.test(s));
				value = s.replace(/^0*/, '');
			return false;
		});
		this.bind("dragenter", function() {
			return false;
		});
		this.bind("keyup", function() {
			if (/(^0+)/.test(this.value)) {
				this.value = this.value.replace(/^0*/, '');
			}
		});
	};
	
	/**
	 * IE6下弹出层的遮罩
	 */
	$.fn.bgIframe = $.fn.bgiframe = function(s) {
		// This is only for IE6
		if ( $.browser.msie && /6.0/.test(navigator.userAgent) ) {
			s = $.extend({
				top     : 'auto', // auto == .currentStyle.borderTopWidth
				left    : 'auto', // auto == .currentStyle.borderLeftWidth
				width   : 'auto', // auto == offsetWidth
				height  : 'auto', // auto == offsetHeight
				opacity : true,
				src     : 'javascript:false;'
			}, s || {});
			var prop = function(n){return n&&n.constructor==Number?n+'px':n;},
				html = '<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+
						   'style="display:block;position:absolute;z-index:-1;'+
							   (s.opacity !== false?'filter:Alpha(Opacity=\'0\');':'')+
							   'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+
							   'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+
							   'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+
							   'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+
						'"/>';
			return this.each(function() {
				if ( $('> iframe.bgiframe', this).length == 0 )
					this.insertBefore( document.createElement(html), this.firstChild );
			});
		}
		return this;
	};
	
	/**
	 * COOKIE操作
	 */
	$.cookie = function (key, value, options) {
	
		// key and value given, set cookie...
		if (arguments.length > 1 && (value === null || typeof value !== "object")) {
			options = jQuery.extend({}, options);
	
			if (value === null) {
				options.expires = -1;
			}
	
			if (typeof options.expires === 'number') {
				var days = options.expires, t = options.expires = new Date();
				t.setDate(t.getDate() + days);
			}
	
			return (document.cookie = [
				encodeURIComponent(key), '=',
				options.raw ? String(value) : encodeURIComponent(String(value)),
				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
				options.path ? '; path=' + options.path : '',
				options.domain ? '; domain=' + options.domain : '',
				options.secure ? '; secure' : ''
			].join(''));
		}
	
		// key and possibly options given, get cookie...
		options = value || {};
		var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
		return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
	};
	
	/**
	 * 取得页面的偏移量
	 */
	$.getPageScroll = function() {
		
		var xScroll, yScroll;
	
		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
			xScroll = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
			xScroll = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
			xScroll = document.body.scrollLeft;	
		}
	
		arrayPageScroll = new Array(xScroll,yScroll) 
		return arrayPageScroll;
	};
	
	/**
	 * 取得页面的长宽
	 */
	$.getPageSize = function() {
		var xScroll, yScroll;
		
		if (window.innerHeight && window.scrollMaxY) {	
			xScroll = window.innerWidth + window.scrollMaxX;
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight) {
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else {
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		
		var windowWidth, windowHeight;
		
		if (self.innerHeight) {
			if(document.documentElement.clientWidth){
				windowWidth = document.documentElement.clientWidth; 
			} else {
				windowWidth = self.innerWidth;
			}
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) {
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) {
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}
		
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else { 
			pageHeight = yScroll;
		}
		
		if(xScroll < windowWidth){	
			pageWidth = xScroll;		
		} else {
			pageWidth = windowWidth;
		}
	
		arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
		return arrayPageSize;
	};
	
	/** jQuery.toJSON( json-serializble )
        Converts the given argument into a JSON respresentation.

        If an object has a "toJSON" function, that will be used to get the representation.
        Non-integer/string keys are skipped in the object, as are keys that point to a function.

        json-serializble:
            The *thing* to be converted.
     **/
    $.toJSON = function(o)
    {
        if (typeof(JSON) == 'object' && JSON.stringify)
            return JSON.stringify(o);
        
        var type = typeof(o);
    
        if (o === null)
            return "null";
    
        if (type == "undefined")
            return undefined;
        
        if (type == "number" || type == "boolean")
            return o + "";
    
        if (type == "string")
            return $.quoteString(o);
    
        if (type == 'object')
        {
            if (typeof o.toJSON == "function") 
                return $.toJSON( o.toJSON() );
            
            if (o.constructor === Date)
            {
                var month = o.getUTCMonth() + 1;
                if (month < 10) month = '0' + month;

                var day = o.getUTCDate();
                if (day < 10) day = '0' + day;

                var year = o.getUTCFullYear();
                
                var hours = o.getUTCHours();
                if (hours < 10) hours = '0' + hours;
                
                var minutes = o.getUTCMinutes();
                if (minutes < 10) minutes = '0' + minutes;
                
                var seconds = o.getUTCSeconds();
                if (seconds < 10) seconds = '0' + seconds;
                
                var milli = o.getUTCMilliseconds();
                if (milli < 100) milli = '0' + milli;
                if (milli < 10) milli = '0' + milli;

                return '"' + year + '-' + month + '-' + day + 'T' +
                             hours + ':' + minutes + ':' + seconds + 
                             '.' + milli + 'Z"'; 
            }

            if (o.constructor === Array) 
            {
                var ret = [];
                for (var i = 0; i < o.length; i++)
                    ret.push( $.toJSON(o[i]) || "null" );

                return "[" + ret.join(",") + "]";
            }
        
            var pairs = [];
            for (var k in o) {
                var name;
                var type = typeof k;

                if (type == "number")
                    name = '"' + k + '"';
                else if (type == "string")
                    name = $.quoteString(k);
                else
                    continue;  //skip non-string or number keys
            
                if (typeof o[k] == "function") 
                    continue;  //skip pairs where the value is a function.
            
                var val = $.toJSON(o[k]);
            
                pairs.push(name + ":" + val);
            }

            return "{" + pairs.join(", ") + "}";
        }
    };

    /** jQuery.evalJSON(src)
        Evaluates a given piece of json source.
     **/
    $.evalJSON = function(src)
    {
        if (typeof(JSON) == 'object' && JSON.parse)
            return JSON.parse(src);
        return eval("(" + src + ")");
    };
    
    /** jQuery.quoteString(string)
        Returns a string-repr of a string, escaping quotes intelligently.  
        Mostly a support function for toJSON.
    
        Examples:
            >>> jQuery.quoteString("apple")
            "apple"
        
            >>> jQuery.quoteString('"Where are we going?", she asked.')
            "\"Where are we going?\", she asked."
     **/
    $.quoteString = function(string)
    {
        if (string.match(_escapeable))
        {
            return '"' + string.replace(_escapeable, function (a) 
            {
                var c = _meta[a];
                if (typeof c === 'string') return c;
                c = a.charCodeAt();
                return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
            }) + '"';
        }
        return '"' + string + '"';
    };
    
    var _escapeable = /["\\\x00-\x1f\x7f-\x9f]/g;
    
    var _meta = {
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '"' : '\\"',
        '\\': '\\\\'
    };
})(jQuery);
